Chapter5

The physician labor market is complex and influenced by various factors including training, work hours, returns to medical training, physician agency, and discrimination.

Medical School
- Entry is competitive globally; in the US, about 50% of applicants get accepted.
- Medical education length varies:
  - US & Canada: Bachelor's degree followed by medical school.
  - Europe: Direct entry from high school.
- Medical school costs in the US range from $140,000 to $225,000 for four years, while European training is typically subsidized.
Residency
- Involves on-the-job training in addition to classroom education.
- New residents may lead to increased medical errors, commonly referred to as the “July effect” in the US and “August killing season” in the UK.

Work Hours
- Physicians frequently work over 60 hours a week; residents can work 30 consecutive hours on call.
- A 2003 regulation aimed to limit work to 80 hours a week, with mixed compliance and patient outcomes.
Work-Hour Tradeoffs
- Longer Hours: Fatigue can impair cognitive abilities, affecting patient care.
- Shorter Hours: May increase the risk of errors due to more hand-offs.
- Empirical studies are required to understand which effect is more significant.
Research Findings
- A study at Brigham and Women’s ICU (2004) showed that traditional hours (80/week) led to significantly more medical errors compared to shorter hours (60/week).
  - Results:
    - 36% more serious errors
    - 21% more medication errors
    - 5.6 times more diagnostic errors
  - Senior physicians were crucial in intercepting serious mistakes.

Economic Perspective
- The returns on medical training are back-loaded, with high initial costs in tuition and opportunity cost.
- Physicians must be patient to appreciate future earnings.
Net Present Value (NPV)
- NPV calculates the value of future income streams from today's perspective.
- The discount factor (δ) illustrates a person's valuation of future income relative to present value.
  - High δ indicates valuing future earnings; low δ implies a discounting of future benefits.
Internal Rate of Return (IRR)
- The IRR for medical careers typically ranges from 11% to 14%, indicating lucrative career pathways.
- This return suggests a strong financial incentive for pursuing a medical career despite high entry barriers.
Barriers to Entry
- The American Medical Association established numerous regulations for medical schooling and licensure to ensure quality.
- Barriers include limited medical school class sizes and licensure requirements for practicing independently.

Understanding Agency
- Physicians are expected to act in the best interest of their patients.
- However, financial incentivization can skew this agent principle, leading to over-prescription and unnecessary treatments.
Physician-Induced Demand
- Due to information asymmetry, patients often cannot discern the necessity of prescribed tests or services, leading to potential over-utilization of medical services.
Defensive Medicine
- Some physicians engage in defensive medicine, ordering excessive tests or treatments to mitigate liability risks.
- This practice contributes to the high costs of healthcare, estimated to be about $55.6 billion annually.

Types of Discrimination
- Taste-based: Preference for certain patient groups, may be conscious or unconscious.
- Statistical: Stereotypes affecting the treatment of patients.
Empirical Evidence
- A study by Shulman et al. (1999) indicated racial bias in treatment recommendations based on the actor's race in hypothetical patient histories.
Efficient vs. Inefficient Discrimination
- Taste-based discrimination is inefficient, while statistical discrimination can be efficient under certain conditions where treatment differences are justified by medical evidence.

The physician labor market is highly regulated, leading to doctor shortages and the challenge of filling care voids.
Returns to specialization in medicine are substantial, but physician agency issues, overutilization of services, and discrimination persist in healthcare.